A Review on Bio-Medical Image Enhancement using Counter Let Transformation and Bacterial Foraging Optimization

Image contrast enhancement is a feature for the enhancement of image. Images contrast is a feature which has been utilize for the proper visualization of image. In these feature intensity value available in the image, plays a vital role for the purpose of visualization. Bio-medical images like x-ray, ultrasound etc has drawback of low contrast constraints. Due to the low level of contrast, image feature cannot be proper visualized. Various approaches have been proposed for the enhancement of bio-medical images. Different type of f special type filters is available to enhance contrast of images but this approach does not provide better result in the context of contrast enhancement. The big issue in contrast enhancement is that these approaches utilize super resolution algorithm, which neglect some feature value available in the images and because of which proper feature cannot be visualized.